Here's what I was able to find about your dad,
Jeffersons34n2.
Blue Jays game action, courtesy of VintageBlueJays blog. Hope Jesse's just doing his pre-inning warm-ups, or he'll need to have a talk with that inattentive first baseman there. (Willie Upshaw, is that you?)
Angels 8x10 promo pic.
I also like to do tweaks to pictures, increasing the brightness and sharpness so we can see facial features that would otherwise be hidden in shadows (a pet peeve of mine). Here are a few I did to pictures you've already seen:
I also searched for items currently on sale that you might like to have:
The J.D. McCarthy postcard; you've seen the autographed version, but this one is clean.
1992 Nabisco Canada Jays' 15th anniversary baseball cards. You've probably seen your dad's, as it was listed in the cardpedia entry
RPirske linked you to, but here it is for sale. Don't know if you have it already.
The White Sox 8x10 shown upthread,
the Angels 8x10 I just posted, and
the Orioles 3.5x5. You may already have any or all of these, but if you don't, I hope this helps.
Lastly, I don't know if you've ever read
this blog post about your dad's one-and-only outing for the Pirates, but it was a good read. Pretty good day for #51, it appears. (Even if it was the only time he ever wore that number.)
Again, hope I was able to help. Best wishes.